Canary Wharf’s Crossrail station has taken shape with completion of the external structure.
The last of 56 aluminium louvres was placed in the roof last week to allow air to flow to the garden below.
Canary Wharf Contractors is the main contractor for the project, with Arup the structural and building services engineer.
Piling for the station began in May 2009, with the first phase of the building to open next year, and Crossrail trains expected to use it from 2018.
Canary Wharf Group secretary John Garwood said: “The project has run smoothly and on schedule. The completion of the roof marks the final stage of construction.
“It will certainly be a stunning building of architectural significance for the UK, and a world-leading showcase of innovative design.”